https://superuser.com/questions/487365/where-do-mac-os-x-keep-its-display-settings
~/Library/Preferences/ByHost/com.apple.windowserver*.plist
macで困った:display設定
https://superuser.com/questions/487365/where-do-mac-os-x-keep-its-display-settings
~/Library/Preferences/ByHost/com.apple.windowserver*.plist